Device for the storage and metering of a plurality of components

ABSTRACT

The storage and metering device has two halves of similar construction, each of which has a pocket formed in a foil for receiving a flowable component. A cover is secured to each foil by a seam to close the respective pocket or one cover is used that is secured to one of the foils. The foils are secured to each other outside the seam.

This invention relates to a device for the storage and metering of aplurality of components. More particularly, this invention relates to adevice for the storage and metering of multiple components for mixingpurposes.

As is known, various types of packaging have been used, for example, forthe storage of the individual components of a multi-component adhesive,for use in the food industry or for the packaging of medicinalpreparations. Common to all this packaging is that the individualcomponents are stored in separate containers, which are lockable, untilthey are used. Packaging of this kind is, in particular, known asblister packaging. Blister packages for liquid ingredients andingredients in powder form consist of a deep drawn foil (deep drawnfilm) and a sealing foil which closes off the ingredients.

In the case of some foodstuffs, cosmetics, pharmaceutical products oradhesives, a plurality of components have to be or should be packagedseparately for eventual use together at the same time. Thus, a packagefor this purpose consists of at least two blister packages that can beconnected to one another in a suitable manner. A so-called doubleblister package is known in which two components are stored next to oneanother. This double blister packages comprises a deep drawn foil withtwo deep drawn pockets lying next to each other. A component is insertedinto each of the pockets. The components are closed with a sealing foilso that the components can be stored in their pockets, without therebeing a danger of a leak. During use, the components are pressed out,one after the other. Alternatively, the pockets lying next to each otherare folded over one another over a pre-determined bending edge and arejointly pressed out. In this case, the two pockets are brought to lieone above the other and the pressing out process can take place exactlyat the same time for all components.

The aforementioned packages are simple to manufacture, however they havethe disadvantage that the correct use has to be explained to the userand there is also the possibility of faulty manipulation. Moreover, asolution with a common outlet passage or with an integrated mixer cannotbe realised in this form because either a common outlet passage cannotbe provided design-wise or because a separate closing mechanism has tobe provided which prevents a discharge of the components from theirrespective pockets during storage. A closing mechanism would be only bereleasable during use in order to facilitate a discharge of thecomponents into a common discharge passage.

A multi-component foil container is known from DE 20 2005 001 203U1 andfrom WO2006079413. The multi-component foil container has a lower halfshell and an upper half shell which is manufactured from an inherentlystable plastic foil by deep drawing or thermoforming. The two halfshells are fixedly connected to one another by welding or gluing. Eachof the half shells contains a storage region for the reception of arespective component in a chamber provided for this. Adjacent chambersfor different components are separated from each other by a partitioningfoil. In accordance with DE 20 2005 001 203 U1, the chambers arearranged one above the other in the half shells. The chambers open outon the one side into a mixing region, which is separated from thechambers, so that each component is kept sealed so long as it is stored.

In the first embodiment shown in WO2006/079413, horizontal partitioningwebs are inserted between the chambers of the half shells that arefilled with a component and a trough-shaped depression into which amixing element can be inserted. With regard to the partitioning webs, itis only mentioned that they are designed in such a way that they areforced apart by the emerging components at a predetermined point, inorder to open a passage from the chambers to the trough-shapeddepression which the forms the discharge passage. In accordance with allother embodiments, opening spikes, plungers or webs coupled to the mixerelement or webs of the mixer element are provided, in order to establisha connection between the chambers and the mixer element, which makes thedischarge of the components possible. Discharge means can be provided inorder to guarantee a uniform discharge, which cannot be achieved withmanual handling.

The non-releasable connection of such blister packages lying one abovethe other has caused considerable problems up until now. Thus, inblister packages in accordance with the prior art, the two rear sides ofthe sealing foils have to be connected together. This can be done, atmost, by an additionally applied sealant layer and later sealing, andwhen using one of these named methods, the material choice for thesealing foils is very restricted.

Further, the packages can be subject to faulty manipulation, forexample, by bringing together two storage regions wherein both onlycontain a hardener component of a two-component adhesive. If a device ofthis kind were used, the two-component adhesive would not harden, sincethe binder component is missing. The necessary chemical reaction betweenthe hardener component and the binder component would be missing, sothat no adhesive connection could take place. For this reason, allcomponents should already be stored in separate storage regions evenduring the manufacture of the device, wherein the storage regions remaintogether by means of a non-releasable connection, at least for theduration of the storage.

Thus, where two components have to be used together, a common dischargepassage for the components can be integrally moulded into the package.Moreover, the two components can be pressed out simultaneously and in adefined amount by simple pressing by hand or using a simple auxiliarydevice. If the two components are adhesive components which have to bemixed in a predetermined ratio, then this precise metering has a specialsignificance.

If a mixing element is inserted into a discharge passage integrallymoulded to the package, as shown in WO 2006/079413, then anon-releasable, sealed and pressure-resistant connection of the twostorage regions is essential. However, the mixing element has a highpressure loss due to the use of a plurality of deflecting elementswithin the mixing element, so that a relatively high pressing outpressure is required. Also, the storage regions and also the connectingpassages to the mixing elements and the passage in which the mixingelement is received have to be resistant to this pressing out pressure.

Accordingly, it is an object of the invention to provide a simple andeconomical device with sealed storage regions lying one above the otherfor flowable components, wherein the connection of the two devices isnon-releasable so long as the device is not in use.

It is an object of the invention to reduce the cost of manufacturing adevice for the storage of multiple components that are to be mixed at alater time.

It is another object of the invention to reduce the risk of a faultymanipulation of a device in which multiple components are stored forjoint dispensing from the device.

It is another object of the invention to be able to safely storemultiple components in separate storage regions until use.

It is another object of the invention to reduce the risk of combiningstorage regions of a multi-component storage device with the samecomponents by mistake.

Briefly, the invention provides a device for the storage of a pluralityof components that are intended for joint use. The device isparticularly suitable for multi-component adhesives.

The device includes a first storage region that defines a pocket for thereception of a first component and a second storage region that definesa pocket for the reception of a second component with the two firststorage regions being arranged one above the other.

In addition, at least one cover is disposed over the pocket of at leastone of the two storage regions with a seam securing the cover to atleast one of the two storage regions in sealed relation while aconnecting means secures the two storage regions outside the seamrelative to the cover.

In this arrangement, each storage region is formed by a foil of the samematerial which is, in particular, designed as a deep drawing foil. Thetwo foils can be non-releasably and sealingly connected, by theconnecting means preferably formed by thermal welding, ultrasonicwelding or laser welding. Thermal welding has proven to be aparticularly simple and safe method. In this connection, readilyweldable deep drawing foils which contain, in particular, polypropyleneor polyethylene, are welded together by the pressing together of twoheated stamps of a welding tool lying opposite one another. In order toimprove the chemical or physical characteristics, such as the resistanceto chemicals for example, multi-layer foils such as, for example,composite aluminium foils can be used, in which the surface to be weldedis made of a readily weldable plastic.

In one embodiment, a single cover is used to cover the pocket of bothstorage regions. In another embodiment, two covers are used, with eachcovering a pocket of a respective storage region. In this latterembodiment, a pair of seams are formed, one for each cover in order tosecure a respective cover to a respective storage region in sealedrelation. The selection of one of these embodiments is, on the one hand,conditional on the chemical and physical characteristics of thecomponents. It can, for example, be necessary for particularly reactivecomponents to provide a special cover and/or lining of the storageregion. The manufacture of pockets with different volumes lying oneabove the other can likewise make it necessary that each component hasits own cover. Furthermore, the manufacturing method can make itnecessary for the filling of the pockets to take place sequentially.This means that the pockets are first filled with a first component andclosed immediately. The filling of the pockets with the second componentonly takes place once the desired batch size is reached.

The device also has at least one outlet or discharge passage forcommunicating with each pocket of each storage region for dispensing therespective components as a consequence of the action of an appliedpressure on the pockets forming the storage regions. In addition, adischarge tube is provided downstream of the outlet passage with orwithout a mixing element within the discharge tube for receiving anddispensing the respective components.

In accordance with a further advantageous variant, an opening means isprovided in order to open the storage regions immediately prior to use.An opening means of this kind can, on the one hand, be formed as apartitioning means. A partitioning means includes cutting edges whichbring about cutting through of the cover, wherein the opening means isformed as a plunger or as a web of a mixing element.

As an alternative to this, the opening means can open a dischargepassage in that a dilation of a slot takes place without the material ofthe cover or of the foils having to be cut through. An opening means ofthis kind is formed as a wedge for example.

A further category of opening means includes means for the releasing ofthe connection of the foils by kinking movements in the region of thestill closed discharge passage. A movement of the discharge tube towardsthe pockets results in kinking in the region of the discharge passage,which prevents the discharge of the components into the discharge tube.Thus, a passage is released by the kinking movement acting on the outletpassage through which the associated component can flow, after theopening means has been activated.

The invention also provides a method for the storage and for themetering of a plurality of components. This method includes the stepsof:

-   -   filling a first storage region with a first component,    -   closing the storage region for the storage of the first        component,    -   filling a second storage region with a second component,    -   closing the second storage region for the storage of the second        component,    -   arranging the first and second storage regions one above the        other, and    -   fastening the first and second storage regions to one another.

To meter the components, a simultaneous pressing out of the storageregions takes place for the direct combination of the two components inthe desired ratio to one another.

Subsequent to being combined, the components are mixed in a mixingelement.

The opening means can be provided for each of the previously describedembodiments, in order to open the storage regions directly prior to use.The opening means is arranged between a discharge tube and the storageregions, and can be operated, in particular, by a kinking movement ofthe storage regions and of the discharge tube so that a passage isreleased through the kinking movement through which the components flowinto the discharge tube. This results in a step of simultaneouslyopening the first and second storage regions directly before use toexpel the respective components therefrom.

These and other objects and advantages of the invention will become moreapparent from the following detailed description taken in conjunctionwith the accompanying drawings wherein:

FIG. 1 a illustrates a perspective view of device in accordance with theprior art;

FIG. 1 b illustrates a front side view of the device of FIG. 1 a;

FIG. 1 c illustrates a side view of the device of FIG. 1 a;

FIG. 2 a illustrates a perspective view of further device in accordancewith the prior art;

FIG. 2 b illustrates a section view taken on line A-A of FIG. 2 a;

FIG. 3 a illustrates a perspective view of further device in accordancewith the prior art;

FIG. 3 b illustrates a view of the device of FIG. 3 a during foldingthereof;

FIG. 4 a illustrates a perspective view of the top half of a device inaccordance with the invention;

FIG. 4 b illustrates a front side view of the device of FIG. 4 a;

FIG. 4 c illustrates a perspective bottom view of the device of FIG. 4a;

FIG. 5 a illustrates a perspective view of the full device in accordancewith the invention;

FIG. 5 b illustrates a front side view of the device of FIG. 5 a;

FIG. 5 c illustrates a perspective bottom view of the device of FIG. 5a;

FIG. 6 a illustrates a step in the assembly of a first embodiment of thedevice in accordance with the invention;

FIG. 6 b illustrates a subsequent step in the assembly of the firstembodiment of the device in accordance with the invention;

FIG. 7 a illustrates a step in the assembly of a second embodiment ofthe device in accordance with the invention;

FIG. 7 b illustrates a subsequent step in the assembly of the secondembodiment of the device in accordance with the invention;

FIG. 8 a illustrates a perspective view of a modified device with anintegrated mixing element in accordance with the invention;

FIG. 8 b illustrates a perspective view of the cover, outlet passage andmixing element used in the device of FIG. 8 a;

FIG. 8 c illustrates a perspective view of the cover, outlet passage,foil and mixing element used in the device of FIG. 8 a; and

FIG. 9 illustrates a cross-section through a welding tool used in thefabrication of the device of FIG. 5.

Referring to FIGS. 1 a to 1 c, double blister packages 1 are known tohave separate storage regions 2,3 within which in which two componentsare stored next to each other. These regions 2,3 are in the form ofpockets 4,8 that are formed in a foil 6 and that are sealed over by acover 5 (see FIGS. 1 b and 1 c). The package 1 includes dischargepassages 7, 9 extending from the storage regions 2, 3.

As indicated in FIGS. 2 a and 2 b, the cover 5 extends over both storageregions 2,3 to close the pockets 5,8 after the interior of the storageregions (2, 3) have been filled with the first and the secondcomponents. This cover 5 is in particular formed as a sealing foil sothat the components can be stored in the pockets (4, 8) sealed againstenvironmental influences.

In use, the components are pressed out of the package 1 one after theother.

Referring to FIGS. 3 a and 3 b, wherein like reference charactersindicate like parts as above, the device 1 may be provided with a foldline 18 along an axis of symmetry so that the two pockets (4, 8) can befolded one over the other over a pre-determined bending edge. In thiscase, the components stored in the pockets (4, 8) can be pressed outtogether. For this, a pressure is applied to the pockets (4, 8) after acommunication between the pockets and the environment has been created.Suitable for means for the manufacture of a connection of this kind aredisclosed in WO2006/079413.

This package is certainly simple to manufacture; however, the packagehas the disadvantage that the correct use has to be explained and thereis also the possibility of faulty manipulation. Moreover, a solutionwith a common discharge passage or with an integrated mixing element cannot be realised.

As shown in FIGS. 3 a and 3 b, bringing storage regions 2, 3 which arefilled with different components into an oppositely disposed positionalso positions the two discharge passages 7, 9 one above the other, asdo the pockets (4, 8), so that an applied pressure can be exerted onboth pockets together. This arrangement has the advantage that bothcomponents are pressed out simultaneously. However, it should beguaranteed that the volumes of the two pockets 2, 3 are at leastapproximately the same, so that the applied pressure can be exerted asevenly as possible. The arrangement in accordance with FIG. 3 thus onlyhas a limited clearance to press out different volumes and/or componentswith greatly differing flow characteristics.

Referring to FIGS. 4 a, 4 b and 4 c, wherein like reference charactersindicate like parts as above, the disadvantages of the prior art can beavoided using a storage and metering device in accordance with theinvention for the storage of a plurality of components which areintended for joint use.

As shown, the top half of the storage and metering device includes afirst storage region 2 in the form of a pocket 4 that is formed in afoil 6 which fully surrounds the pocket 4. The pocket 4 has the shape ofa half shell for the reception of a first component which is to beregarded as a particularly advantageous embodiment due to the simplemanufacturability. Regardless of this, the pocket 4 can have any othershape that has a hollow space in their interior, which can serve for thereception of a component, in particular of a flowable component.

The storage and metering device also includes a discharge passage 7 thatcommunicates with the storage region 2 and protrudes beyond the storageregion 2.

As shown in FIG. 4 b, the storage region 2 and the discharge passage 7are enclosed by an annular cover 5. The cover 5 is a sealing foil, inparticular a sealing foil which is sealingly connected to the foil 6 bymeans of a seam 14, as shown in FIG. 4 c, in such a way that thecomponent can be stored in the interior of the pocket 4. As indicated,the seam is of annular shape and is located concentrically outside ofthe pocket 4.

Referring to FIGS. 5 a, 5 b and 5 c, wherein like reference charactersindicate like parts as above, the entire storage and metering deviceincludes a first storage region 2 for the reception of a first componentin a first foil 6 and a second storage region 3 for the reception of asecond component in a second foil 10 wherein the storage regions 2, 3are arranged substantially one above the other. Each storage region 2, 3includes a pocket 4, 8, which is sealingly closed by a cover 5 that canbe sealed to the respective pocket 4,8 while forming a seam 14 (notshown). In addition, a discharge passage 7,9 is connected to eachrespective storage region 2,3.

The foils 6,10 are connected directly to each other concentricallyoutside the seam 14 (not shown) via an annular connecting means 16 atthe peripheral edges. In this arrangement, the foils 6,10 are made up ofthe same material and are, in particular, designed as deep drawing foilsthat can be inseparably and sealingly connected preferably by thermalwelding, ultrasonic welding or laser welding. Thermal welding has provedto be a particularly preferable method because it is simple and safe. Inthis connection, readily weldable deep drawn foils, which containpolypropylene or polyethylene, for example, are welded together by thepressing together of two heated stamps of a welding tool lying oppositeone another. In order to improve the chemical or physicalcharacteristics, such as resistance to chemicals, multiple layer foils,such as aluminium composite foils, can be used in which the surface tobe welded is made of a readily weldable plastic.

Referring to FIGS. 6 a and 6 b, wherein like reference charactersindicate like parts as above, each half of the storage and meteringdevice can be separately formed with each half having a cover 5,11 overthe respective pocket 2,3 and with the two halves being brought intooverlying relation to complete the formation of the device. Thisembodiment is particularly useful for particularly reactive componentssince a special covering and/or lining of the storage region can beprovided. Further, the use of separate covers 5,11 allows the pockets2,3 to have different volumes relative to each other.

Furthermore, the manufacturing process can provide for the step offilling of the pockets to take place sequentially. This means that thepockets have first to be filled with a first component and closed. Thefilling of the pockets with the second component only takes place oncethe desired batch size has been reached.

In accordance with FIG. 6 a, a first pocket 4 in the shape of a halfshell along with an outlet passage 7 are formed in a foil 6. The pocket4 and the outlet passage 7 are then covered by the annular cover 5 aftera first component has been filled into the pocket 4. The cover 5 issealingly connected to the foil 6 with the connection including asealing operation. In this case, the cover 5 is formed as a sealingfoil.

Subsequent to this, a second pocket 8 in the shape of a half shell alongwith an outlet passage 9 are formed in a second foil 10. The pocket 8and the outlet passage 9 are then covered by the annular cover 11 aftera second component has been filled into the pocket 8.

The two storage regions 2,3 are then positioned one above the other, asshown in FIG. 6 b. Then the foils 6, 10 are joined radially outside ofthe covers 5,11 by means of a joining means 16, with the joining meansincluding in particular a welding tool for the manufacture of a weldedconnection.

Referring to FIGS. 7 a and 7 b, wherein like reference charactersindicate like parts as above, in an alternative embodiment, a singlecover 5 may be provided for separating the two storage regions 2,3 fromeach other.

In this embodiment, the filling and sealing of the pocket 4 of the firststorage region 2 takes place in the same way as illustrated anddescribed in FIG. 6 a. Thereafter, the pocket 8 of the second storageregion 3 is filled. In this case, instead of the cover 11, the cover 5of the storage region 2 is used as a cover because the whole storageregion 2 is laid on the storage region 3. A connection is made by meansof a connecting means 16 around the cover 5 so that the two storageregions 2 and 3 are fixedly connected to one another. The connectionmeans 16 in particular includes a welded connection of the foil 6 to thefoil 10 outside of the sealing of the storage region 3 with the cover 5,i.e. concentrically outside of the annular cover 5.

Referring to FIG. 8 a, wherein like reference characters indicate likeparts as above, the storage and metering device is provided with adischarge tube 13 downstream of the outlet passage 7 for receiving anddispensing the respective components therefrom. As indicated, thestorage region 2 and pocket 4 may have an elongated shape and the foil 6may have a T-shaped extension.

Referring to FIG. 8 b, the storage and metering device is also providedwith a mixing element 12 that is disposed within and along the dischargetube 13 (see FIG. 8 a) for mixing of the two components that aredischarged through the discharge tube 13. In this view, the foil 6 isomitted so that the interior of the device is visible. The cover 5 andthe outlet passages 7, 9 for the two components are shown in particular.The discharge tube 13 is omitted to allow illustration of the mixingelement 12.

Referring to FIG. 8 c, the cover 5 is again left out, however the foil10 surrounding the storage region 3 is shown. As shown, an opening means17 is provided in the storage and metering device to open the storageregions 2,3 directly prior to use.

The opening means 17 is formed as a partitioning means and includescutting edges which effect a cutting through of the cover 5 and whichare arranged in the region of the outlet passage or is formed as aplunger (not shown) or a web of the mixing element 12 (not shown).

Alternatively, the opening means 17 can open the outlet passage 7,9 inthat a widening of a slit takes place without material of the cover 5 orof the foils 6 needing to be cut through. An opening means of this kind17 is formed as a wedge, for example.

A further category of opening means 17 includes means for the opening agap between the foils 6,10 by kinking movements in the region of thestill closed outlet passage 7, 9. Through movement of the discharge tube13 towards the pockets 4, 8, kinking in the closing region of the outletpassage results, which prevents the discharge of the components into thedischarge tube 13, as long as the device is not in use. Thus, the coveris torn open by means of the kinking movement acting on the outletpassage 7, 9, so that a passage is freed through which the associatedcomponents can flow after the opening means 17 have been actuated. Theoutlet passages 7, 9 are arranged offset relative to one another. Theupper cover 5 is torn open by means of the outlet passage 9, the lowercover 11, if present, by means of the outlet passage 7.

The whole device is connected outside the seam securing the covers 5,11to the foils 6,10 and, if necessary, around the discharge tube 13 forthe mixing element 12 by a connecting means 16. A welded connection canin particular be manufactured by means of the connecting means.

Referring to FIG. 9, the foil 6 which forms the pocket 4 for the storageregion 3 and the outlet passage 7 and the foil 10 which forms the pocket8 for the storage region 3 and the outlet passage 9 can be weldedtogether by means of a welding tool 15 with the welding taking placeoutside the cover 5, i.e. outside the seam.

The storage and metering device in accordance with any one of the aboveembodiment is, in particular, suitable for multiple component adhesivesor multiple component sealants.

The method for the storage and for the metering of a plurality ofcomponents includes the following steps:

-   -   the filling of a storage region 2 with a first component,    -   the closing of the storage region 2 for the storage of the first        component,    -   the filling of a storage region 3 with a second component    -   the closing of the storage region 3 for the storage of the        second component,    -   the arranging of the storage regions 2, 3 substantially one        above the other,    -   the fastening of the storage regions 2,3 to one another by means        of a connecting means 16.

For the metering of the components, a simultaneous pressing out of thestorage regions 2, 3 takes place for the direct combination of the twocomponents for metering in the desired ratio to one another. Subsequentto being combined, the components can be mixed in the mixing element 12.An opening means 17 can be provided for each of the previously describedembodiments in order to open the storage regions 2, 3 directly beforeuse, so that the components can emerge from the storage regions 2,3. Theopening means 17 is arranged between the discharge tube 13 and thestorage regions 2, 3 and can, in particular, be operated by a kinkingmovement of the storage regions and of the discharge tube 13, so that apassage is released by the kinking movement through which the componentsflow into the discharge tube 13.

The invention thus provides a simple and economical device with sealedstorage regions lying one above the other for flowable components thatcan be safely stored for mixing at a later time. The invention alsoreduces the risk of a faulty manipulation of the device as well as therisk of combining storage regions with the same components by mistake.

1. A device for the storage of a plurality of components which areintended for joint use including a first storage region defining apocket for the reception of a first component; a second storage regiondefining a pocket for the reception of a second component, said firststorage region and said second storage region being arranged one abovethe other, at least one cover disposed over said pocket of at least oneof said first storage region and said second storage region; a seamsecuring said cover to said at least one of said first storage regionand said second storage region in sealed relation; and a connectingmeans securing said first storage region to said second storage regionoutside said seam relative to said cover.
 2. A device as set forth inclaim 1 further comprising a pair of said covers, each respective coverbeing disposed over said pocket of a respective one of said firststorage region and said second storage region; and a pair of seams, eachsaid seam securing a respective cover to a respective second storageregion in sealed relation.
 3. A device as set forth in claim 1 furthercomprising at least one outlet passage communicating with each saidpocket of each of said first storage region and said second storageregion for dispensing the respective components therefrom.
 4. A deviceas set forth in claim 3 further comprising a discharge tube downstreamof said outlet passage for receiving and dispensing the respectivecomponents therefrom.
 5. A device as set forth in claim 4 furthercomprising a mixing element within said discharge tube.
 6. A device asset forth in claim 5 wherein said mixing element includes a plunger forpassing through said at least one cover to allow passage of therespective component of each said pocket of said first storage regionand said second storage region for dispensing product into said mixingelement.
 7. A device as set forth in claim 1 further comprising anopening means for opening each of said first storage region to saidsecond storage region for dispensing product therefrom.
 8. A device asset forth in claim 7 further comprising a rupturable passagecommunicating with each of said first storage region and said secondstorage region for dispensing product therefrom, said passage beingrupturable in response to a kinking movement.
 9. A method for thestorage and for the metering of a plurality of components including thesteps of: filling a first storage region with a first component, closingthe storage region for the storage of the first component, filling asecond storage region with a second component, closing the secondstorage region for the storage of the second component, arranging thefirst and second storage regions one above the other, and fastening thefirst and second storage regions to one another.
 10. A method as setforth in claim 9 further comprising the step of simultaneously pressingthe first and second storage regions together to expel the respectivecomponents therefrom for direct mixing together.
 11. A method as setforth in claim 10 wherein the respective components are mixed in amixing element.
 12. A method as set forth in claim 10 further comprisingthe step of simultaneously opening the first and second storage regionsdirectly before use to expel the respective components therefrom.
 13. Amethod as set forth in claim 10 further comprising the step ofsubjecting a rupturable discharge tube extending from the first andsecond storage regions to a kinking movement to rupture the dischargetube and to provide a passage for the respective components to flow fromthe first and second storage region through the discharge tube.